Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 18 - Rotary-piston pumps specially adapted for elastic fluids
Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
11/2008
11/05/2008CN201144808Y Water cooled oil-free lubrication sliding blade compressor
11/05/2008CN201144807Y Explosion prevention rotary plate-type hydrogen gas delivery pump without leakage
11/05/2008CN201144806Y Roots blower unit
11/05/2008CN201144801Y Vane pump
11/05/2008CN101298869A Vented gear drive assembly for a supercharger
11/05/2008CN100430674C Digital volute condensation unit controller
11/05/2008CN100430603C Rotary compressor, and car air conditioner and heat pump type water heater using the compressor
11/05/2008CN100430602C Scroll fluid machinery
10/2008
10/30/2008WO2008129317A1 Vacuum pump
10/30/2008US20080267803 Compressor and oil supplying structure therefor
10/30/2008DE102008015843A1 Hydraulikpumpe Hydraulic pump
10/29/2008EP1985860A2 Rotary compressor
10/29/2008CN101297117A 涡旋压缩机 Scroll Compressor
10/29/2008CN101294571A Double-head scroll compressor
10/29/2008CN101294568A Rotary compressor with air injection enthalpy-increasing function
10/29/2008CN101294567A Totally enclosed double screws type ammonia refrigerating compressor
10/29/2008CN101294566A Scroll fluid machine
10/29/2008CN101294565A Scroll compressor with stop structure to preventing sliding block moving
10/29/2008CN101294564A Nodular graphite cast iron cyclone compressor
10/29/2008CN101294563A Nodular graphite cast iron cyclone compressor
10/28/2008USRE40554 Capacity modulated scroll machine having one or more pin members movably disposed for restricting the radius of the orbiting scroll member
10/28/2008US7442016 Scroll pump and method of assembling same
10/28/2008CA2378960C Rotary piston engine
10/23/2008WO2008125155A1 Vacuum pump
10/23/2008WO2008124950A1 Displacement machine according to the spiral principle
10/23/2008US20080260562 Water-Injected Screw Compressor Element
10/23/2008US20080260547 Compressor sound suppression
10/23/2008US20080256961 Economized Refrigerant System with Vapor Injection at Low Pressure
10/23/2008DE102008019449A1 Bearing for dry-compressing screw pump, has non-fixed bearing with inner ring race firmly placed on cylinder sleeve, and inner ring of non-fixed bearing sealed with sealing ring between cylinder sleeve and spindle rotor shaft end
10/23/2008DE102005040921B4 Trockenlaufender Schraubenverdichter mit pneumatisch gesteuertem Entlüftungsventil Non-lubricated screw compressors with pneumatically controlled vent valve
10/23/2008DE102004033862B4 Maschine, die als Expansions- und Kompressionsmaschine dient Machine, which serves as the expansion and compression machine
10/22/2008EP1983197A1 Fluid machine
10/22/2008EP1983196A1 Scroll compressor with stop structure to prevent slider block movement
10/22/2008EP1983195A1 Ductile cast iron scroll compressor
10/22/2008EP1983194A1 Ductile cast iron scroll compressor
10/22/2008CN201137571Y Scroll type compressor sealed embedding heating structure
10/22/2008CN101292088A 水平涡旋式压缩机 Horizontal scroll compressor
10/22/2008CN101290011A Fluid machine
10/22/2008CN100427761C Swing compressor
10/21/2008US7438540 Two-stage rotary compressor
10/21/2008US7438539 Hermetic type scroll compressor and refrigerating and air-conditioning apparatus
10/21/2008US7438536 Compressors including a plurality of oil storage chambers which are in fluid communication with each other
10/21/2008US7437882 Apparatus for driving a compressor and a refrigerating air conditioner
10/16/2008WO2008124174A1 Variable displacement dual vane pump
10/16/2008WO2008123947A1 Injection molded scroll form
10/16/2008US20080253914 Liquid injection type screw compressor
10/16/2008DE102007018247A1 Vakuumpumpe Vacuum pump
10/16/2008DE102007016025A1 Position displacement vacuum pump e.g. roots vacuum pump, for use in chemical vapor deposition system, has trap surface defining boundary to collecting area with height that is larger than half of minimum clearance provided for pump
10/15/2008EP1980752A2 Injection molded scroll form
10/15/2008EP1980749A1 Electric compressor, and air conditioning system for vehicle, using the electric compressor
10/15/2008EP1979619A1 Vacuum pump unit
10/15/2008EP1979618A1 Multi-step helical screw compressor unit
10/15/2008EP1979617A1 Improved scroll-type fluid displacement apparatus with fully compliant floating scrolls
10/15/2008EP1523624B1 Discharge porting design for screw compressor
10/15/2008CN201133351Y Single screw compressor main unit structure
10/15/2008CN201133350Y Dry screw compressor main unit rotor spindle sealing structure
10/15/2008CN201131224Y Oil-free sliding vane type aerator
10/15/2008CN101287910A Cyclone compressor
10/15/2008CN101285470A Screw rod of screw compressor
10/15/2008CN101285469A Sliding component and swirl motor compressor using the same
10/15/2008CN101285468A Rotary vane type vacuum pump
10/15/2008CN101285467A Improved screw rod main unit structure
10/15/2008CN100425842C Compressor
10/15/2008CN100425839C Single-unit two-stage screw refrigeration compressor set and using method therefor
10/15/2008CN100425838C Fluid machine
10/15/2008CN100425837C Vane pump
10/14/2008US7435065 Rotary fluid machine having a swinging bushing with a swing center disposed radially inwardly of an annular midline of an annular piston
10/14/2008US7435063 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit
10/14/2008US7435062 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit
10/14/2008CA2347781C Twin helical rotors for installation in displacement machines for compressible media
10/09/2008WO2008121070A1 Screw-rotor machine, energy-conversion system and method for energy conversion
10/09/2008WO2008120791A1 Scroll compressor
10/09/2008WO2008120651A1 Scroll member, process for manufacturing the same, compression mechanism and scroll compressor
10/09/2008WO2008120621A1 Scroll member, method of producing the scroll member, compression mechanism, and scroll compressor
10/09/2008DE112006003112T5 Pumpe eines Roots-Typs und Brennstoffzellensystem Pump of a Roots-type and fuel cell system
10/09/2008DE102008008156A1 Roots-Fluidmaschine Roots type fluid machine
10/09/2008CA2681595A1 Compressor having a high pressure slide valve assembly
10/08/2008EP1978258A2 Scroll fluid machine
10/08/2008EP1978257A1 Scroll compressor with slider block having upper surface over enlarged area
10/08/2008EP1978255A2 A scroll fluid machine
10/08/2008EP1978253A1 Electric compressor
10/08/2008CN101283183A Rotary compressor
10/08/2008CN101280781A Compressor inlet duct
10/08/2008CN101280780A Screw rod of double-screw rod compressor
10/08/2008CN101280779A Screw rod of double-screw rod compressor
10/08/2008CN101280778A Screw rod of screw compressor
10/08/2008CN101280777A Swirl compressor with sliding block on upper surface having extended area
10/08/2008CN100424980C Apparatus for compensating for speed error of motor
10/08/2008CN100424442C Screw compressor and freezer
10/08/2008CN100424441C Trans-critical refrigerating unit
10/08/2008CN100424359C Oil supply device for vortex type compressor
10/08/2008CN100424357C Rotor structure of rotary compressor
10/08/2008CN100424355C Discharge valve device of rotary compressor
10/08/2008CN100424353C Wear prevention device for vortex type compressor
10/08/2008CN100424352C By-pass valve assembly of rotary displacement compressor
10/08/2008CN100424351C Variable capacity rotary compressor
10/08/2008CN100424350C Compression unit of orbiting vane compressor
10/02/2008WO2008118162A1 Scroll compressor with compliant retainer
10/02/2008WO2008117539A1 Variable crank mechanism and scroll fluid machine with variable crank mechanism
10/02/2008WO2008117082A1 Vacuum pump
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